Re: Recent -current cpucontrol panic: [cpuctl, 129]: cannot bind to target cpu 1

From: Andrey Chernov <ache_at_freebsd.org>
Date: Sun, 22 May 2016 12:19:32 +0300
On 22.05.2016 10:14, Konstantin Belousov wrote:
> On Sun, May 22, 2016 at 09:47:08AM +0300, Andrey Chernov wrote:
>> With microcode_update_enable="YES" in rc.conf:
>>
>> db:0:kdb.enter.panic>  show pcpu
>> cpuid        = 1
>> dynamic pcpu = 0xfffffe02ac1fd300
>> curthread    = 0xfffff8000ae75a00: pid 736 "cpucontrol"
>> curpcb       = 0xfffffe023754eb80
>> fpcurthread  = none
>> idlethread   = 0xfffff800022b5000: tid 100003 "idle: cpu1"
>> curpmap      = 0xfffff8000af02138
>> tssp         = 0xffffffff80c1cf78
>> commontssp   = 0xffffffff80c1cf78
>> rsp0         = 0xfffffe023754eb80
>> gs32p        = 0xffffffff80c237d0
>> ldt          = 0xffffffff80c23810
>> tss          = 0xffffffff80c23800
>> db:0:kdb.enter.panic>  bt
>> Tracing pid 736 tid 100121 td 0xfffff8000ae75a00
>> kdb_enter() at kdb_enter+0x3b/frame 0xfffffe023754e620
>> vpanic() at vpanic+0x19f/frame 0xfffffe023754e6a0
>> kassert_panic() at kassert_panic+0x126/frame 0xfffffe023754e710
>> cpuctl_do_cpuid_count() at cpuctl_do_cpuid_count+0x85/frame
>> 0xfffffe023754e750
>> cpuctl_ioctl() at cpuctl_ioctl+0x389/frame 0xfffffe023754e800
>> devfs_ioctl_f() at devfs_ioctl_f+0x156/frame 0xfffffe023754e860
>> kern_ioctl() at kern_ioctl+0x204/frame 0xfffffe023754e8c0
>> sys_ioctl() at sys_ioctl+0x171/frame 0xfffffe023754e9a0
>> amd64_syscall() at amd64_syscall+0x28e/frame 0xfffffe023754eab0
>> Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe023754eab0
>> --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8009778ea, rsp =
>> 0x7fffffffe788, rbp = 0x7fffffffe7d0 ---
> 
> Show verbose dmesg of your boot.

Attached.

> What scheduler do you use ?

ULE

> In the fired KASSERT, add printout of td->td_oncpu and show the updated
> panic message.

I add, but can't reproduce this bug again so far.
Received on Sun May 22 2016 - 07:19:43 UTC

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